Key result
Retrospective studies provide valuable clinical insights comparable to randomized controlled trials, with one analysis showing only 2 of 19 observational effects fell outside the 95% CI of RCTs.
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Design
Editorial
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This editorial argues that retrospective studies remain a valuable and necessary tool in clinical research, complementing RCTs and large database studies.
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Edward T. Riley (2014) reported an editorial. Retrospective studies provide valuable clinical insights comparable to randomized controlled trials, with one analysis showing only 2 of 19 observational effects fell outside the 95% CI of RCTs.
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